The 40-gram drone uses sonar and smartphone microphones to track insects before ramming into them https://www.dexerto.com/entertainment/engineers-autonomous-micro-drone-scores-first-kill-in-plan-to-eradicate-mosquitoes-3387426/

Engineers have successfully carried out the first autonomous mid-air kill with a mosquito hunting micro drone The team says its long term goal is to completely eradicate mosquitoes

The 40-gram drone uses sonar and smartphone microphones to track insects before ramming into them https://www.dexerto.com/entertainment/engineers-autonomous-micro-drone-scores-first-kill-in-plan-to-eradicate-mosquitoes-3387426/

Extremely excited to announce our first air-to-air kill of a flying moth by an autonomous micro-drone. This is a big step towards completely eradicating mosquitoes.